MaxPower's 331740B includes 1 mower blade for many 22 in. cut Craftsman, Husqvarna and Poulan mowers. This blade replaces OEM #s 420463, 421825, 532-421825, 437601, 532420463 and 532437601. Also fits Craftsman CMXGZAM100130. This blade measures 22 in. L and 2-1/2 in. W with a 5 point star center hole. To ensure proper fit, please verify the OEM # of the blade you are replacing matches the OEM # listed in this description. MaxPower blades are proudly manufactured in the USA to meet or exceed OEM specification.